You asked about IoT Security
366 people built something like it. 47 are gone.
That is 15% of the ones whose fate we could settle, against 23% across the whole register. 49 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2020-01-01 | YCRiot Cybersecurity awareness for fast growing companies · tryriot.com | still up |
| 2019-01-01 | YCTermius Termius is an SSH client with team collaboration features · termius.com | still up |
| 2014-01-01 | We're making a smart, front door camera with intercom that lets you… · getkuna.com | acquired |
| 2025-06-01 | AI infrastructure for biosecurity · twentytwo.bio | still up |
| 2025-06-01 | Infrastructure Cartography · riverbank.sh | still up |
| 2012-06-01 | Unlocking the power of biotech with modern software for modern science · benchling.com | still up |
| 2018-01-01 | YCVanta Vanta—the proven leader in automated compliance helping startups… · vanta.com | still up |
| 2021-01-01 | YCTractian Physical AI for asset-heavy industries · tractian.com | still up |
| 2015-01-01 | YCChariot The world's first private mass transit service providing a commuting… · chariot.com | acquired |
| 2019-06-01 | YCTRM Labs TRM is building a safer world for billions of people. · trmlabs.com | still up |
| 2016-01-01 | We make robots for biologists. · opentrons.com | still up |
| 2015-06-01 | YCTeleport The Infrastructure Identity Company · goteleport.com | still up |
| 2016-06-01 | YCgarten Creating workplace wellbeing. · garten.co | acquired |
| 2012-01-01 | YCAuthy Authy is a Two-Factor Authentication platform for developers · authy.com | acquired |
| 2016-01-01 | Protects organizations from getting breached through their APIs. · salt.security | still up |
| 2017-01-01 | YCSolugen Decarbonizing the chemicals industry. · solugen.com | still up |
| 2021-01-01 | YCCyble Cyble - World’s First Intelligence-Driven, AI-Native Security… · cyble.com | still up |
| 2017-01-01 | AI company transforming enterprise physical security to prevent… · ambient.ai | still up |
| 2017-01-01 | YCUpKeep Mobile-first software for maintenance teams. · upkeep.com | acquired |
| 2018-01-01 | YCSqreen Sqreen is the application security platform for the modern enterprise · sqreen.com | acquired |
| 2012-06-01 | Secure Collaboration for Technical Teams · mattermost.com | still up |
| 2016-06-01 | YCValidere A carbon MRV solution for energy and hard-to-abate sectors · validere.com | still up |
| 2021-01-01 | YCgaiia all-in-one operating system (OS) for telcos · gaiia.com | still up |
| 2012-01-01 | YCRidecell World's Leading Fleet Intelligence Platform · ridecell.com | still up |
| 2018-01-01 | Security auditing for Web3 · quantstamp.com | still up |
| 2019-01-01 | YCMemfault First IoT reliability platform for debugging, monitoring, OTA updates · memfault.com | acquired |
| 2022-01-01 | Identity Verification API for Emerging Markets · prembly.com | still up |
| 2022-06-01 | YCOneleet YC's most popular security compliance platform (SOC 2, ISO 27001,… · oneleet.com | still up |
| 2021-06-01 | YCRootly AI-native on-call and incident response carefully crafted to help… · rootly.com | still up |
| 2020-01-01 | Next-generation DNA synthesis using enzymes · ansabio.com | still up |
| 2015-01-01 | Artificial intelligence for drug discovery. · numerionlabs.ai | still up |
| 2022-01-01 | Plug-and-play AI platform with sensors and dashboards that makes… · iotflows.com | still up |
| 2020-06-01 | YCSafeBase Trust Center platform that scales customer security reviews · safebase.io | acquired |
| 2018-01-01 | YCAnjuna Anjuna enabled organizations to trust any infrastructure · anjuna.io | still up |
| 2022-01-01 | YCOptery Opt out software that removes your private info from the internet · optery.com | still up |
| 2016-01-01 | YCLygos Lygos engineers yeast to convert sugar into high-value industrial… · lygos.com | still up |
| 2022-01-01 | Enterprise Deepfake Detection · realitydefender.com | still up |
| 2020-01-01 | Foundation models and autonomous chambers for plant biology · urbankisaan.com | still up |
| 2015-01-01 | Bluesmart makes smart luggage powered by an app to empower people to… · bluesmart.com | acquired |
| 2011-06-01 | Automatic connects your car to the rest of your digital life. · automatic.com | acquired |
| 2011-06-01 | Powering scientific outsourcing · scienceexchange.com | acquired |
| 2020-01-01 | RNA medicines for liver diseases · ochre-bio.com | still up |
| 2019-01-01 | Unlocking the utility of genomics for the world. · voltalabs.com | still up |
| 2022-01-01 | YCAgency Agency replaces traditional security and compliance headcount with AI. · getagency.com | still up |
| 2018-06-01 | AIoT monitoring, workflow, and evidence systems for regulated labs. · ilabservice.ai | still up |
| 2022-01-01 | Bluetooth to Space · hubble.com | still up |
| 2023-01-01 | Unified platform for secrets, certs, and privileged access management · infisical.com | still up |
| 2020-06-01 | YCNotabene The Notabene platform is the trust layer for global money movement. · notabene.id | still up |
| 2015-01-01 | Personalized drug discovery for blood cancer. · notablelabs.com | acquired |
| 2021-01-01 | Robots that automate the everyday tasks of microbiologists. · reshapebiotech.com | still up |
| 2018-01-01 | We grow cells for biotech companies. · culturebiosciences.com | still up |
| 2020-01-01 | maximizing biomass on low quality land · livingcarbon.com | still up |
| 2019-01-01 | YCOverview Reshaping industrial quality with AI, hardware, and software · overview.ai | still up |
| 2010-06-01 | YCAeroFS Secure Enterprise Collaboration. · aerofs.com | acquired |
| 2013-06-01 | Location intelligence platform · estimote.com | still up |
| 2017-06-01 | YCUpfort Turnkey security & hassle-free cyber insurance from leading insurers · upfort.com | still up |
| 2018-06-01 | Next-gen ingredients to decarbonize consumer products, starting w/… · c16bio.com | still up |
| 2020-06-01 | We make unmakeable proteins with radical advanced biomanufacturing. · futurefields.io | still up |
| 2021-01-01 | YCauthzed Authorization Infrastructure securing AI at OpenAI, Zoom, & more · authzed.com | still up |
| 2022-01-01 | YCMunily Access control management app for Latam´s gated communities · munily.com | still up |
How this compares
Older launches have had longer to die, so this slope is expected. A year that broke it would mean something is wrong with the checking.
The register re-probes every domain it holds. Some that answered last month stop answering. We send that list — what went quiet, and what it was — once a month. Nothing else.
How this was made. Show HN entries are every post from 2021 to 2023 with at least five points that linked to its own domain; code hosts and free hosting are excluded, because a repository outlives the effort behind it. Product Hunt entries needed 100 votes — a far higher bar, so they are the promoted top slice rather than a like-for-like sample. Both are judged by asking the domain whether it still answers: gone means it no longer resolves, refuses the connection, serves a parking page, or says plainly that it shut down. An HTTP error is not counted as gone — a server answering 404 is one somebody still pays for, and an audit of 25 gone-calls found two such sites alive with only a moved homepage. Y Combinator entries use the status YC publishes itself, which is why only those can say acquired. Squatted domains — a lapsed name now serving somebody else's site — are not detected, so these figures run slightly low.